JP5700693B2 - Elevator power control device and elevator power control method - Google Patents

Description

  Embodiments described herein relate generally to an elevator power control device and an elevator power control method.

  Conventionally, in the operation control of an elevator, an operation for improving the energy saving effect has been performed by controlling the amount of power used so as not to exceed a predetermined threshold.

  As a technique for performing such operation, for example, when the predicted value of the demand amount received from the commercial system exceeds the contracted power, a demand warning is issued to change the speed and acceleration / deceleration of the elevator, thereby using the power consumption. There is a demand monitoring system that aims to reduce this. As another technique, there is a group management control system that controls the number of operating elevators for each time zone based on the power consumption and the average waiting time for each time zone according to the target power amount.

JP 2009-96582 A JP 2010-70380 A

  However, when changing the speed or acceleration / deceleration of an elevator by a demand warning, the speed is changed by a demand warning issued according to the power consumption of the entire building. Rate) could not be clarified.

  In addition, when controlling the number of elevators operated by group management control, even if the reduction target value (power saving rate) of the electric energy is low and can be handled only by controlling the equipment in the elevator, Since the amount of power used is reduced due to the restriction, there is a problem that the transportation capacity is reduced.

  The present invention has been made in view of the above circumstances, and clarifies the power-saving (power-saving) rate of the amount of power used by the elevator, and prevents the reduction of transportation capacity and performs efficient power-saving control of the elevator. It is an object to provide a control device and an elevator power control method.

According to an embodiment for achieving the above object, an elevator power control apparatus includes a power saving control operation information storage unit, a power saving rate setting unit, and a power control unit. The power-saving control operation information storage unit stores preset power-saving rate values for each operation program information for power-saving control related to the operation of each device in the elevator car and the limitation on the number of units in operation. To do. The power saving rate setting unit sets a target value for the power saving rate of the elevator. The power control unit gives priority to the power saving control related to the operation of each device in the elevator car over the limit of the number of elevators in operation, and the total value of the power saving rate guideline is the set power saving rate. One or a plurality of operation program information is selected so as to exceed the target value, and a signal for power-saving control of operation of equipment in the elevator is generated based on the selected operation program information and output to the elevator control device .

1 is an overall view showing a configuration of an elevator system using an elevator power control apparatus according to a first embodiment. An example of the information memorized by the power-saving control operation information storage part of the elevator power control device by a 1st embodiment. The flowchart which shows operation | movement of the elevator electric power apparatus by 1st Embodiment. The whole figure which shows the structure of the elevator system using the elevator electric power control apparatus by 2nd Embodiment and 3rd Embodiment. The example of the used electric power pattern which totaled the electric energy used at the time of the normal electric power control acquired in the elevator electric power control apparatus concerning 2nd Embodiment and 3rd Embodiment for every time, and showed with the graph. The example of the used electric power pattern which totaled every time and used the electric power consumption at the time of the power saving (power saving) control acquired in the elevator electric power control apparatus according to 2nd Embodiment and 3rd Embodiment, and showed with the graph. The flowchart which shows operation | movement of the elevator electric power apparatus by 2nd Embodiment and 3rd Embodiment. The flowchart which shows operation | movement when the reset of the target value of a power saving (power saving) rate is performed in the elevator electric power control apparatus by 3rd Embodiment. The elevator electric power control apparatus by 3rd Embodiment WHEREIN: An example of the graph which showed the electric energy used at the time of normal electric power control, and the electric energy which can be used. The whole figure which shows the structure of the elevator system using the elevator electric power control apparatus by 4th Embodiment. An example of the information of the electric energy consumption forecast value acquired with the elevator electric power control apparatus by 4th Embodiment. The flowchart which shows a process when the target value of a power saving (power saving) rate is calculated in the elevator power control apparatus by 4th Embodiment. The whole figure which shows the structure of the elevator system using the elevator electric power control apparatus by 5th Embodiment.

<< First Embodiment >>
The elevator system using the elevator power control apparatus according to the first embodiment of the present invention is operated at a power saving (power saving) rate that is equal to or higher than the target value of the power saving (power saving) rate set by the building manager or maintenance personnel. Thus, the operation of the equipment in the elevator is efficiently controlled.

<Configuration of Elevator System Using Elevator Power Control Device according to First Embodiment>
A configuration of an elevator system using the elevator power control apparatus according to the present embodiment will be described with reference to FIG.

  The elevator system 1A according to the present embodiment includes a first elevator 10a, a second elevator 10b, and a third elevator 10c installed in a building such as a building, a group management control device 20 that performs group management of operations of these elevators, The elevator power control device 30 </ b> A connected to the first elevator 10 a to the third elevator 10 c and the group management control device 20 is provided.

  The first elevator 10a is operated by an elevator control device 11a having an operation control unit 111a and a car device control unit 112a, a hoisting machine 12a and a car 13a whose operation is controlled by the operation control unit 111a, and a car device control unit 112a. Has a lighting device 131a and an air conditioner 132a in the car 13a.

  Similarly, the second elevator 10b includes an elevator control device 11b, a hoisting machine 12b controlled by the elevator control device 11b, a car 13b, a lighting device 131b in the car 13b, and an air conditioner 132b. Similarly, the third elevator 10c includes an elevator control device 11c, a hoisting machine 12c controlled by the elevator control device 11c, a car 13c, a lighting device 131c in the car 13c, and an air conditioner 132c.

  In addition, the elevator power control device 30A includes a power saving control operation information storage unit 31, a power saving (power saving) rate setting unit 32, and a power control unit 33A.

  The power saving control operation information storage unit 31 has a plurality of power saving control operation information indicating operation program information for performing power saving control on the first elevator 10a to the third elevator 10c, and each power saving control operation information in advance. The set priority of application, applicable time, and a guideline value of the power saving (power saving) rate when executed are stored.

  The power saving (power saving) rate setting unit 32 supports power saving (power saving) by operating a switch for switching between normal power control and power saving (power saving) compatible control of an elevator, and an interface such as a keyboard by a building manager or maintenance personnel. It is composed of a personal computer or the like in which information related to control is set. When the power saving (power saving) rate setting unit 32 is configured by a personal computer, as information on the power saving (power saving) compatible control of the elevator, for example, for each application time of the power saving (power saving) compatible control or for each bank A target value for the power (power saving) rate is input and set.

  The power control unit 33A selects, from the power saving control operation information storage unit 31, power saving control operation information corresponding to the information set by the power saving (power saving) rate setting unit 32, and sets the group according to the selected power saving control operation information. The power management control operation signal for controlling the operation of the management control device 20 and the devices in the first elevator 10a to the third elevator 10c is generated, and the group management control device 20 and the first elevator 10a to the third elevator 10c are generated. Output to.

<Operation of Elevator System Using Elevator Power Control Device according to First Embodiment>
Next, the operation of the elevator system 1A according to the present embodiment will be described.

  In the present embodiment, the power saving control operation information storage unit 31 of the elevator power control apparatus 30A has a plurality of power saving control operation information as shown in FIG. 2 in advance, and priority of application (priority rank is high). “A” → “B” → “C” in order), applicable time, and a reference value of the power saving (power saving) rate when the control is performed by the power saving control operation information To do.

  In FIG. 2, regarding the power saving control operation information “reduction of the number of used lights, change of illuminance”, the priority of application is “A”, the applicable time is “8:00 to 17:00”, and power saving (power saving) The standard value of the rate is “1%”, the priority of application is “A”, the applicable time is “unlimited”, and the power saving control operation information “information supply cage / hall monitor power off” The standard value of the power (power saving) rate is “2%”, the priority of application is “A”, the applicable time is “unlimited” for the power saving control operation information “power-off of the air conditioner, change of set temperature”, The standard value of the power saving (power saving) rate is “3%”, the priority of application for the power saving control operation information “change of speed / acceleration during driving” is “B”, the applicable time is “unlimited”, The standard value of the power saving (power saving) rate is “ % ”, The priority of application is“ B ”, and the applicable time is“ 8:00 to 9:00, 11: The standard value of the power saving (power saving) rate is “7%”, and the priority applied to the power saving control operation information “operating number restriction” is “C” The applicable time is “9:00 to 11:00, 13: 0 to 17:00, 18:00 to 7:00”, and the standard value of the power saving (power saving) rate is “15%”. It is shown.

  In the present embodiment, it is assumed that the power saving (power saving) rate setting unit 32 is configured by a personal computer.

  In the state configured as described above, an interface such as a keyboard of a personal computer constituting the power saving (power saving) rate setting unit 32 is operated by a building administrator or maintenance personnel, thereby controlling power saving (power saving). The operation of the power control unit 33A of the elevator power control device 30A when the information regarding is input will be described with reference to the flowchart of FIG.

  First, in the power saving (power saving) rate setting unit 32, for example, a target value of the power saving (power saving) rate for each application time of the power saving (power saving) compatible control is input and set as information regarding the power saving (power saving) compatible control. Then (S11), the process of selecting the power saving control operation information to be applied from among the power control unit 33A stored in the power saving control operation information storage unit 31 is started (S12).

  Here, when the power saving control operation information is selected, it is first determined whether there is power saving control operation information of the priority A that has not yet been selected from the information stored in the power saving control operation information storage unit 31. If it is determined (S13) that there is no power saving control operation information of priority A that has not been selected ("NO" in S13), whether there is power saving control operation information of priority B that has not yet been selected. Is determined (S14), and there is no power-saving control operation information of priority B that has not been selected ("NO" in S14), whether there is power-saving control operation information of priority C that has not yet been selected. Is determined (S15).

  When it is determined in step S13 that there is power saving control operation information with priority A ("YES" in S13), when it is determined in step S14 that there is power saving control operation information with priority B ("S" in S14) YES ”), or when it is determined in step S15 that there is power saving control operation information of priority C (“ YES ”in S15), the application time set in step S11 is the power saving control operation information. Is within the applicable time (“YES” in S16), the power saving control operation information is selected as an application target (S17). Through the processing in steps S13 to S17, the stored power saving control operation information corresponding to the applicable time is selected in descending order of priority.

  Then, it is determined whether or not the reference value of the power saving (power saving) rate of the selected power saving control operation information to be applied exceeds the target value of the power saving (power saving) rate set in step S11. (S18).

  In step S16, when it is determined that the application time set in step S11 is not within the applicable time of the corresponding power saving control operation information (“NO” in S16), or in step S18, the application target When it is determined that the reference value of the power saving (power saving) rate of the power saving control operation information does not exceed the target value of the power saving (power saving) rate set in step S11 ("NO" in S18). The process returns to step S13.

  In this way, until the total value of the target values of the power saving (power saving) rate of the power saving control operation information to be applied exceeds the target value of the power saving (power saving) rate set in step S11, The power saving control operation information selection process is repeated.

  When the total value of the target values of the power saving (power saving) rate of the power saving control operation information to be applied exceeds the target value of the power saving (power saving) rate set in step S11 (“YES” in S18), Based on the selected power saving control operation information, the group management control device 20 and a power saving control operation signal for controlling the operation of the devices in the first elevator 10a to the third elevator 10c are generated, and the group management control device 20 and It is output to the first elevator 10a to the third elevator 10c (S19). In the group management control device 20 and the first elevator 10a to the third elevator 10c, based on the acquired power saving operation signal, the operation of the hoisting machines 12a to 12c by the operation control units 111a to 111c and the car device control units 112a to 112a The operation of lighting devices 131a to 131c and air conditioners 132a to 132c by 112c is controlled.

  For example, when the application time “13: 0 to 15:00” and the target value “1%” of the power saving (power saving) rate at this time are input and set as information on power saving (power saving) compatible control, From the power saving control operation information corresponding to the application time, the priority A “reduction of the number of used lighting, change of illuminance” is selected, and the power saving control operation signal for controlling the lighting devices 131a to 131c is generated. Are output to the car equipment control units 112a to 112c of the first elevator control device 11a to the third elevator control device 11c. Then, the car device control units 112a to 112c control the ON / OFF states, illuminance, and the like of the lighting devices 131a to 131c based on the acquired power saving control operation signal.

  Moreover, even if all the power saving control operations within the application time stored in the power saving control operation information storage unit 31 are applied, the target value of the power saving (power saving) rate set in step S11 is set. When there is no applicable unselected power saving control operation information (“NO” in S15), all elevators are stopped or operated at the maximum power saving (power saving) rate that can be applied in advance. A power saving control operation signal for performing the set operation is generated and output to the group management control device 20 and the first elevator 10a to the third elevator 10c (S20).

  According to the first embodiment described above, according to the target value of the power saving (power saving) rate of the amount of power used by the elevator set by the administrator, it is possible to efficiently save the elevator without impairing the convenience of the user as much as possible. Power (power saving) support control can be performed.

<< Second Embodiment >>
In the elevator system using the elevator power control apparatus according to the second embodiment of the present invention, in the elevator system according to the first embodiment, the power saving (power saving) rate for each power saving control operation information according to the past operation status. The low price is learned, and the information stored in the power saving control operation information storage unit 31 of the elevator power control device is updated.

<Configuration of Elevator System Using Elevator Power Control Device according to Second Embodiment>
The structure of the elevator system using the elevator power control apparatus according to the present embodiment will be described with reference to FIG.

  The elevator system 1B according to the present embodiment includes a first elevator 10a, a second elevator 10b, and a third elevator 10c installed in a building such as a building, a group management control device 20 that performs group management of operations of these elevators, The elevator power control device 30B connected to the first elevator 10a to the third elevator 10c and the group management control device 20, and the used power meter 40 connected to the first elevator 10a to the third elevator 10c and the elevator power control device 30B. With.

  Since the configurations and functions of the first elevator 10a to the third elevator 10c and the group management control device 20 are the same as those in the first embodiment, detailed description thereof is omitted.

  The power usage meter 40 measures the amount of power used in each of the first elevator 10a to the third elevator 10c, and outputs the measured value to the power control unit 33B of the elevator power control device 30B.

  The configuration of the elevator power control device 30B is the same as the configuration of the elevator power control device 30A in the first embodiment except that it has a power control unit 33B instead of the power control unit 33A, and further has a used power pattern storage unit 34. Therefore, detailed description of functional units having the same function is omitted.

  The power control unit 33B acquires the measured values of the power consumption of the first elevator 10a to the third elevator 10c in a predetermined period from the power usage meter 40 according to a preset condition, and totals the measured values every predetermined time. The power pattern is sent to the used power pattern storage unit 34. The preset condition is, for example, the amount of power used per hour of an arbitrary number of elevators during normal power control, power saving (power saving) control, or an arbitrary period.

  Further, the power control unit 33B calculates a power saving (power saving) rate for each hour of the corresponding elevator based on the information transmitted to and stored in the power consumption pattern storage unit 34, and the power saving control operation information storage unit 31 stores the power saving rate. Update the stored power saving (power saving) rate guideline.

  The used power pattern storage unit 34 stores the used power pattern sent from the power control unit 33B. Examples of the used power pattern stored in the used power pattern storage unit 34 are shown in FIGS. 5 and 6.

  FIG. 5 is an example of a power consumption pattern in which the power consumption during normal power control of the first elevators 10a to 10c is tabulated and shown for each hour.

  Further, FIG. 6 shows that the target value of the power saving (power saving) rate for the application time “7:00 to 10:00” is “5%” and the application time “10: 0 to 00” from the power saving (power saving) rate setting unit 32. The target value of the power saving (power saving) rate at “15:00” is “15%”, and the target value of the power saving (power saving) rate at the application time “15:00 to 18:00” is “5%”. It is an example of the used electric power pattern which totaled the electric energy used of the 1st elevator 10a-3rd elevator 10c for every time when the power saving (power saving) corresponding | compatible control was set and was shown with the graph. In FIG. 6, the portion indicated by the dotted line is the amount reduced compared to the amount of power used during normal power control in FIG.

<Operation of Elevator System Using Elevator Power Control Device according to Second Embodiment>
Next, as an example of the operation of the elevator system 1B according to the present embodiment, the elevator power control when the guideline value of the power saving (power saving) rate stored in the power saving control operation information storage unit 31 is updated and learned. The operation of the power control unit 33B of the device 30B will be described with reference to the flowchart of FIG.

  In FIG. 7, the processing at the time of power saving (power saving) compatible power control in steps S11 to S20 is the same as the processing in steps S11 to S20 of FIG. 3 described in the first embodiment, and thus detailed description thereof is omitted. To do.

  Further, in the present embodiment, during the normal power control in which the power saving (power saving) -compatible power control is not performed, the power usage amounts of the first elevator 10a to the third elevator 10c measured by the power usage meter 40 are the elevators. It is acquired by the power control unit 33B of the power control device 30B, aggregated, for example, as shown in the graph of FIG. 5, and stored in the used power pattern storage unit 34 as a used power pattern.

  When the power saving control operation signal is output in step S19 or S20, based on the power saving operation signal acquired in the first elevator 10a to the third elevator 10c, the operation of the hoisting machines 12a to 12c by the operation control units 111a to 111c. The operation of the lighting devices 131a to 131c and the air conditioners 132a to 132c by the car device control units 112a to 112c is controlled.

  And the electric power consumption of the 1st elevator 10a-the 3rd elevator 10c during control of these driving | operations is measured with the electric power measuring device 40, and is transmitted to the elevator electric power control apparatus 30B.

  In the elevator power control device 30B, the measurement value measured by the power consumption measuring device 40 is acquired by the power control unit 33B, and the power consumption for each hour of the first elevators 10a to 10c during the power saving (power saving) control is obtained. For example, the data is aggregated as shown in the graph of FIG. 6 and transmitted to the used power pattern storage unit 34 as the used power pattern (S21).

  Next, the power control unit 33B compares the used power pattern during normal power control stored in the used power pattern storage unit 34 with the used power pattern during power saving (power saving) compatible control, and creates a new power saving (power saving). ) A standard value of the rate is calculated (S22). An example of a calculation process of a reference value of the power saving (power saving) rate will be described.

  In the same time zone, power consumption per hour during normal power control is X1, power consumption per hour during power saving (power saving) control is Y1, and power saving per hour (power saving) The rate Z1 is calculated by the following formula (1).

[Equation 1]
Z1 = (X1-Y1) / X1 × 100 (1)
Moreover, the average power saving (power saving) rate Z is calculated by the following equation (2), where the power saving (power saving) rates per unit time calculated by the equation (1) are Z1, Z2. However, this may be a power saving (power saving) rate per hour.

[Equation 2]
Z = Z1 + Z2 ++ Zn / n (2)
At this time, when the number of measurement results is small and the fluctuation of the power saving (power saving) rate per unit time is large, the power saving (power saving) rate is weighted per unit time, as shown in the following formula (3) The average power saving (power saving) rate Z may be calculated.

[Equation 3]
Z = Z1α + Z2β ... Znγ / n (α: weight (i), β: weight (ii), γ: weight (iii) (3)
Then, based on the power saving (power saving) rate calculated as described above, the reference value of the power saving (power saving) rate of the corresponding power saving control operation information stored in the power saving control operation information storage unit 31 is updated. Is learned (S23).

  Note that only the measured power consumption value for a preset period or an arbitrary period may be used for calculating the new power saving (power saving) rate.

  According to the second embodiment described above, the power-saving (power-saving) control of the elevator with high accuracy according to the operation status of the elevator is performed by updating the preset reference value of the power-saving (power-saving) rate. be able to.

<< Third Embodiment >>
In the elevator system using the elevator power control apparatus according to the third embodiment of the present invention, when it is predicted that the set power saving (power saving) rate cannot be achieved based on the measured power consumption value, Reset the target value of power (power saving) rate.

<Configuration of Elevator System Using Elevator Power Control Device according to Third Embodiment>
Since the configuration of the elevator system according to the present embodiment is the same as the configuration of the elevator system 1B described in the second embodiment, a detailed description of functional units having the same functions is omitted.

  In the present embodiment, the power control unit 33B of the elevator power control device 30B includes the functions described in the second embodiment, and the power consumption of the first elevator 10a to the third elevator 10c output from the power consumption measuring device 40. Based on the measured value, it has a function of determining whether or not the target value of the power saving (power saving) rate set by the power saving (power saving) rate setting unit 32 can be achieved. When it is determined that the target value of the power saving (power saving) rate cannot be achieved, a process of resetting the target value of the power saving (power saving) rate is performed.

<Operation of Elevator System Using Elevator Power Control Device according to Third Embodiment>
Next, as an example of the operation of the elevator system 1B according to the third embodiment, power saving is performed as necessary based on the measured values of the power consumption of the first elevator 10a to the third elevator 10c during power saving (power saving) control. The operation of the power control unit 33B of the elevator power control device 30B when resetting the target value of the power saving (power saving) rate set by the (power saving) rate setting unit 32 will be described with reference to the flowchart of FIG. explain.

  Also in the present embodiment, as in the second embodiment, the first elevator 10a to the third elevator 10c measured by the power consumption measuring instrument 40 during the normal power control in which the power saving (power saving) compatible power control is not performed. Are used by the power control unit 33B of the elevator power control device 30B, and are totaled as shown in the graph of FIG. 5, for example, and stored in the used power pattern storage unit 34 as a used power pattern.

  Thus, the power saving (power saving) rate for each application time for performing power saving (power saving) compatible control from the power saving (power saving) rate setting unit 32 in a state where the power consumption pattern at the time of normal power control is stored. When the target value is input, the available power amount for performing power saving support control is calculated so as to achieve the target value at regular time intervals (S31). The available power amount is obtained by subtracting the power usage amount corresponding to the target value of the power saving (power saving) rate from the power usage amount during normal power control.

  Next, the difference between the calculated usable power amount and the corresponding consumed power amount at regular time indicated by the used power pattern at the time of normal power control stored in the used power pattern storage unit 34 is equal to or less than a certain amount. It is determined whether or not (S32).

  For example, when the available power amount is calculated every hour as shown in FIG. 9, the difference from the used power amount during normal power control is calculated at intervals of 15 minutes, etc. Is determined. If it is less than a certain amount (“YES” in S32), the process is repeated as it is.

  Here, when the difference between the available power amount and the used power amount during normal power control exceeds a certain amount (“NO” in S32), the set target value of the power saving (power saving) rate cannot be achieved. The display and announcement are made to prompt the building manager and maintenance personnel who operate the power saving (power saving) rate setting unit 32 to reset the target value of the power saving (power saving) rate. Alternatively, the target value of the power saving (power saving) rate set by the power saving (power saving) rate setting unit 32 is automatically reduced at a predetermined constant rate, thereby saving power (saving power). The target value of the rate is reset (S33).

  According to the third embodiment described above, the target value is reset when it is determined that the target value of the power saving (power saving) rate set by the building manager or maintenance staff cannot be achieved. Thus, it is possible to perform reliable and efficient control of power saving (power saving) of the elevator.

<< 4th Embodiment >>
In the elevator system using the elevator power control apparatus according to the fourth embodiment of the present invention, the target value of the power saving (power saving) rate is set based on the information of the used power forecast value acquired from the outside.

<Configuration of Elevator System Using Elevator Power Control Device according to Fourth Embodiment>
The structure of the elevator system using the elevator power control apparatus according to the present embodiment will be described with reference to FIG.

  The elevator system 1C according to the present embodiment includes a first elevator 10a, a second elevator 10b, and a third elevator 10c installed in a building such as a building, a group management control device 20 that performs group management of operations of these elevators, The elevator power control device 30C connected to the first elevator 10a to the third elevator 10c and the group management control device 20, and the used power meter 40 connected to the first elevator 10a to the third elevator 10c and the elevator power control device 30C. And a power usage forecasting device 50 connected to the elevator power control device 30C.

  Since the configurations and functions of the first elevator 10a to the third elevator 10c, the group management control device 20, and the power consumption measuring device 40 are the same as those in the second embodiment and the third embodiment, detailed description thereof is omitted.

  The power usage forecasting device 50 is connected to the elevator power control device 30C via an external network such as the Internet, and provides information on the power usage forecast value by a power company or the like.

  The configuration of the elevator power control device 30 </ b> C includes a power saving control operation information storage unit 31, a power control unit 33 </ b> C, a used power pattern storage unit 34, and a power saving (power saving) rate setting control unit 35. The configurations and functions of the power saving control operation information storage unit 31, the power control unit 33C, and the used power pattern storage unit 34 are the same as the corresponding functional units of the elevator power control device 30B in the second embodiment and the third embodiment. Therefore, detailed description is omitted.

  The power saving (power saving) rate setting control unit 35 acquires information on the power usage amount prediction value provided from the power usage forecasting device 50, and acquires the acquired information and preset power saving (power saving) rate control information. Based on this, the target value of the power saving (power saving) rate is calculated.

<Operation of Elevator System Using Elevator Power Control Device according to Fourth Embodiment>
Next, an example of the operation of the elevator system 1C according to the present embodiment will be described.

  In the present embodiment, the power saving (power saving) rate setting control unit 35 previously stores power saving (power saving) as the power saving (power saving) rate control information when the predicted power consumption amount exceeds 90% of the maximum power supply amount. ) If the target value of the rate is 15% and the predicted power consumption is 80% to 90% of the maximum power supply, the target value of the power saving (power saving) rate is set to 5%. It shall be.

  In the state set in this way, the power saving (power saving) rate setting control unit 35 acquires information on the power usage amount prediction value provided from the power usage prediction device 50. An example of the information on the obtained power consumption prediction value is shown in FIG.

  In FIG. 11, the predicted power consumption value is provided as hourly information and exceeds 90% of the maximum power supply amount at time 18:00, time 10:00 to 17:00, and 19:00 to 19:00. It is shown that it becomes 80% to 90% of the maximum power supply amount at 20:00.

  Next, a target value of the power saving (power saving) rate is calculated based on the acquired information on the used power consumption prediction value and preset power saving (power saving) rate control information. Processing when the power saving (power saving) rate setting control unit 35 calculates the target value of the power saving (power saving) rate will be described with reference to the flowchart of FIG.

  First, when the obtained power consumption prediction value exceeds 90% of the maximum power supply amount (“YES” in S41), for example, at time 18:00 in FIG. 11, the target value of the power saving (power saving) rate is 15 % Is set and output to the power control unit 33C (S42).

  In step S41, the predicted power consumption value is 90% or less of the maximum power supply amount (“NO” in S41) and exceeds 80% (“YES” in S43; the power consumption prediction value is the maximum power supply amount). For example, at times 10: 0 to 17:00 and 19:00 to 20:00 in FIG. 11, the target value of the power saving (power saving) rate is set as 5% and the power The data is output to the control unit 33C (S44).

  In addition, when the predicted power consumption amount is 80% or less of the maximum power supply amount in Step S43 (“NO” in S43), the target value of the power saving (power saving) rate is not set.

  In the power control unit 33C, when the target value of the power saving (power saving) rate set by the power saving (power saving) rate setting control unit 35 is acquired, the power control unit 33C is similar to the second embodiment or the third embodiment based on this target value. The power saving (power saving) support control is executed.

  According to the fourth embodiment described above, the building manager and maintenance personnel need to manually set the power saving (power saving) rate, based on the information on the predicted electric power consumption value provided from the outside. Elevator power-saving (power-saving) control can be executed more efficiently at a corresponding power-saving (power-saving) rate.

<< 5th Embodiment >>
In the elevator system using the elevator power control apparatus according to the fifth embodiment of the present invention, means for acquiring a target value of a power saving (power saving) rate by operation of a building manager or maintenance personnel, and power consumption acquired from the outside Both are provided with a means for acquiring a target value based on information of a forecast value.

<Configuration of Elevator System Using Elevator Power Control Device according to Fifth Embodiment>
The elevator system 1D according to the present embodiment includes a first elevator 10a, a second elevator 10b, and a third elevator 10c installed in a building such as a building, a group management control device 20 that performs group management of operations of these elevators, The elevator power control device 30D connected to the first elevator 10a to the third elevator 10c and the group management control device 20, and the used power meter 40 connected to the first elevator 10a to the third elevator 10c and the elevator power control device 30D. And a power usage forecasting device 50 connected to the elevator power control device 30D.

  Since the configurations and functions of the first elevator 10a to the third elevator 10c, the group management control device 20, the used power measuring device 40, and the used power forecasting device 50 are the same as those in the fourth embodiment, a detailed description thereof is omitted. .

  The configuration of the elevator power control device 30D includes a power saving control operation information storage unit 31, a power saving (power saving) rate setting unit 32, a power control unit 33D, a power consumption pattern storage unit 34, and a power saving (power saving) rate. And a setting control unit 35. The configurations and functions of the power saving control operation information storage unit 31, the used power pattern storage unit 34, and the power saving (power saving) rate setting control unit 35 are the same as the corresponding functional units of the elevator power control apparatus 30C in the fourth embodiment. Therefore, detailed description is omitted.

  The power control unit 33D includes a plurality of power saving (power saving) rates input from the power saving (power saving) rate setting unit 32 and a power saving (power saving) rate acquired from the power saving (power saving) rate setting control unit 35. When the power saving (power saving) rate is acquired, these are compared, the larger value is selected and set, and the power saving (power saving) compatible control is executed.

<Operation of Elevator System Using Elevator Power Control Device according to Fifth Embodiment>
Next, an example of operation | movement of the elevator system 1D by this embodiment is demonstrated. In the power control unit 33D of the elevator power control apparatus 30D according to the present embodiment, the power saving (power saving) rate is acquired from both the power saving (power saving) rate setting unit 32 and the power saving (power saving) rate setting control unit 35. Sometimes, the largest value among these is selected and set as the power saving (power saving) rate, and thereafter, the power saving (power saving) support control is executed by the same processing as in any of the first to third embodiments. The

  According to the fifth embodiment described above, when a plurality of power saving (power saving) rates are acquired, by using the power saving (power saving) rate having the largest value among these, it is possible to save more accurate elevators. Power (power saving) support control can be performed.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1A, 1B, 1C, 1D ... Elevator system 10a ... 1st elevator 10b ... 2nd elevator 10c ... 3rd elevator 11a, 11b, 11c ... Elevator control apparatus 12a, 12b, 12c ... Winding machine 20 ... Group management control apparatus 30A, 30B, 30C, 30D ... Elevator power control device 31 ... Power saving control operation information storage unit 32 ... Power saving (power saving) rate setting unit 33A, 33B, 33C, 33D ... Power control unit 34 ... Power consumption pattern storage unit 35 ... Save Power (power saving) rate setting control unit 40 ... Used power measuring device 50 ... Used power prediction device 111a, 111b, 111c ... Operation control unit 112a, 112b, 112c ... Cage device control unit 131a, 131b, 131c ... Lighting device 132a, 132b 132c ... Air conditioner

Claims (7)

In the elevator power control device connected to the elevator control device that controls the operation of the equipment in the elevator,
Power-saving control operation information storage unit that stores a preset value of the power-saving rate preset for each operation program information for power-saving control related to the operation of each device in the elevator car and the limitation of the number of operating vehicles When,
A power saving rate setting unit configured to set a target value of the power saving rate of the elevator that is input;
Prioritizing power-saving control related to the operation of each device in the car rather than limiting the number of elevators in operation, the total value of the standard values of the power-saving rate is the power-saving rate set by the power-saving rate setting unit. One or a plurality of the operation program information is selected from the power storage control operation information storage unit so as to exceed the target value, and the operation of the equipment in the elevator is performed according to the selected operation program information. An elevator power control device comprising: a power control unit that generates a signal for controlling power saving and outputs the signal to the elevator control device. The power saving control operation information storage unit further stores information on priority and applicable time for each driving program information,
In the power saving rate setting unit, a target value of the power saving rate is set for each application time of the power saving compatible control,
In the power control unit, the application time of the target value of the power saving rate set by the power saving rate setting unit corresponds to the applicable time and the operation program information that has not yet been selected is stored in the power saving control. Select from the highest priority stored in the operation information storage unit in order of priority, generate a signal for controlling the operation of the equipment in the elevator according to the selected operation program information, and output to the elevator control device The elevator power control apparatus according to claim 1. The power control unit generates a signal for controlling the power saving and outputs the signal to the elevator control device, and then the power consumption of the elevator for a predetermined time during the operation by the power saving control is performed. Obtain a measured value and calculate a new guideline value for the power saving rate related to the operation program information for the corresponding power saving control based on the difference from the amount of power used during normal power control in the same time zone stored in advance The elevator power control device according to claim 1, wherein the reference value of the power saving rate in the power saving control operation information storage unit is updated. The power control unit achieves the target value from the measured value of the used electric energy of the elevator acquired during normal power control and the target value of the power saving rate set by the power saving rate setting unit. When the amount of usable power for performing power saving compatible control is calculated and the difference between the calculated usable power amount and the measured value of the used power amount acquired during the normal power control exceeds a certain amount, the power saving 4. The elevator power control apparatus according to claim 3, wherein information for resetting the target value of the rate is output. 5. The target value of the power saving rate input to the power saving rate setting unit is calculated based on information on a power consumption prediction value supplied from outside. The elevator power control apparatus described in 1. The power control unit, when a plurality of target values of the power saving rate are acquired, performs power saving support control using a target value of the power saving rate having the largest value among them. Elevator power control apparatus of any one of -5. An elevator power control device connected to an elevator control device that controls the operation of equipment in the elevator,
A step of storing a reference value of the power saving rate preset for each operation program information for power saving control related to the operation of each device in the elevator car and the number of operating limits,
Setting an input target value of the power saving rate of the elevator;
Prioritizing power-saving control related to the operation of each device in the elevator car over the limit on the number of elevators in operation, the total value of the standard values of the power-saving rate is the target value of the set power-saving rate. Selecting one or a plurality of the operation program information from the stored so as to exceed, and generating a signal for power-saving control of the operation of the equipment in the elevator according to the selected operation program information, And a step of outputting to the elevator control device.

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